74th Annual Meeting of the APS Division of Fluid Dynamics (November 21, 2021 — November 23, 2021)

V0014: Faucet Aerator Flow

  • Mark Godfrey Mungal, Santa Clara University
DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0014

We view the flow from a common kitchen faucet aerator under strong sunlight lighting and slow motion video capture - 8 times slower than normal. We observe a water droplet cloud consisting of many fine droplets surrounding the main water jet, due to the breaking of air bubbles at the jet surface which launch the droplets, like projectiles, into the surrounding air. None of this is visible under ambient lighting and normal viewing, so one would not know or suspect that this is happening.

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